07 Driver support
07
232* Option/accessory, for more information, see Introduction.
Park Assist Pilot (PAP)* – limitations
The PAP parking procedure will be cancelled if.
• The vehicle's speed goes above approxi- mately 4 mph 7 km/h
• The driver moves the steering wheel
• If the stability or ABS systems are acti-vated (e.g., if a wheel starts to spinbecause of a slippery road surface
If the system has been switched off, this will be indicated by a text message in the instru-ment panel.
NOTE
• PAP will not function correctly if its sensors are obstructed by dirt, snow,etc.
• In certain situations, PAP may not beable to measure a parking space. Thiscould be due to external sources ofsound (e.g., a vehicle's horn, tires onwet asphalt, pneumatic brakes, noisefrom a motorcycle's exhaust, etc.)emitting ultrasound using approxi-mately the same frequencies as PAP.
Information to keep in mindPAP is only intended to provide parallel park- ing assistance but may not be able to func-tion fully in all situations. •
PAP's function is based on the way that the vehicles are parked behind and infront of your parking space. If they are,for example, parked too close to the curb,there is a risk that your vehicle's tires orwheel rims could be damaged by thecurb during the parking procedure.
• PAP is intended to provide parking assis-tance on straight streets, not sections ofstreet with curved or irregular curbs. Besure that your vehicle is parallel to thecurb when PAP measures the parkingspace.
• PAP may not be able to provide parkingassistance on narrow streets due to lackof space to maneuver the vehicle. In sit-uations like this, it may help to drive asclose to the side of the road as possiblewhere the parking space is located.
• Use only approved tires with the correctinflation pressure because this affectsPAP's capacity to provide parking assis-tance. See the table in Tire inflation –pressure table (p. 297). Changing to adifferent approved tire size may affectPAP's parameters. Consult a trained andqualified Volvo service technician.
• Heavy rain or snow may inhibit PAP'scapacity to correctly measure a parkingspace.
• Do not use PAP if snow chains or a tem-porary spare tire is being used.
• Do not use PAP if there are any objectsprotruding from the vehicle.
WARNING
• The front end of your vehicle may turn out toward oncoming traffic during theparking procedure.
• Objects located above the parkingsensors' field of vision are not includedwhen PAP measures a parking space.For this reason, PAP may turn into theparking space too soon. Avoid parkingspaces of this type.
• The driver is always responsible fordetermining if PAP has selected a suit-able parking space.
Maintenance
Generic illustration. The PAP sensors are located in the front and rear bumpers
PAP uses the same sensors as the Park assist system, see Park assist – limitations(p. 228)).
09 Wheels and tires
09
285
Tires – general information
Your vehicle is equipped with tires according to the vehicle's tire information placard on theB-pillar (the structural member at the side ofthe vehicle, at the rear of the driver's dooropening).
Introduction
CAUTION
Some Volvo models are equipped with an Ultra High Performance tire and wheelcombination designed to provide maxi-mum dry pavement performance with con-sideration for hydroplaning resistance.They may be more susceptible to roadhazard damage and, depending on drivingconditions, may achieve a tread life of lessthan 20,000 miles (30,000 km). Even if thisvehicle is equipped with Volvo’s advancedAWD or stability system, these tires are notdesigned for winter driving, and should bereplaced with winter tires when weatherconditions dictate.
The tires have good road holding characteris- tics and offer good handling on dry and wetsurfaces. It should be noted however that thetires have been developed to give these fea-tures on snow/ice-free surfaces. Most models are equipped with "all-season" tires, which provide a somewhat higherdegree of road holding on slippery surfacesthan tires without the "all-season" rating.However, for optimum road holding on icy orsnow-covered roads, we recommend suitablewinter tires on all four wheels. When replacing tires, be sure that the new tires are the same size designation, type(radial) and preferably from the same manu-facturer, on all four wheels. Otherwise there isa risk of altering the car's roadholding andhandling characteristics.
Tire rotationYour vehicle has no required tire rotation. Tirewear is affected by a number of factors suchas tire inflation, ambient temperature, drivingstyle, etc.
NOTE
•
If the tires are rotated, they should only be moved from front to rear orvice versa. They should never be rota-ted left to right/right to left.
• Ideally, tire rotation should be done thefirst time after approximately 3,000miles (5,000 km) and thereafter at6,000-mile (10,000-km) intervals.Some customers find that tire rotationmay help to get extra mileage from tirelife.
• Tire rotation should only be performedif front/rear tire wear is fairly even andtread height is above 1/16" (1.6 mm).
Related information
•
Tire inflation – pressure table (p. 297)
• Tire specifications (p. 295)
• Changing a wheel – direction of rotation (p. 288)
• Tires – tread wear indicator (p. 287)
09 Wheels and tires
09
286
Tires – storage and age
When storing complete wheels (tires mounted on rims), they should be suspended off thefloor or placed on their sides on the floor.
New Tires
Remember that tires are perishable goods. Asof 2000, the manufacturing week and year(Department of Transportation (DOT) stamp)will be indicated with 4 digits (e.g., 1513means that the tire illustrated was manufac-tured during week 15 of 2013).
Tire ageTires degrade over time, even when they are not being used. It is recommended that tiresgenerally be replaced after 6 years of normalservice. Heat caused by hot climates, fre-quent high loading conditions or Ultra Violet(U.V.) exposure can accelerate the agingprocess. The temporary spare
1
should also
be replaced at 6-year intervals, even if it hasnever been used. A tire's age can be determined by the DOT stamp on the sidewall (see the illustration). A tire with e.g., visible cracks or discoloration should be replaced immediately.
Storing wheels and tiresWhen storing completes wheels (tires moun-ted on rims), they should be suspended offthe floor or placed on their sides on the floor. Tires not mounted on rims should be stored on their sides or standing upright, but shouldnot be suspended.
CAUTION
Tires should preferably be stored in a cool, dry, dark place, and should never bestored in close proximity to solvents, gaso-line, oils, etc.
WARNING
• The wheel and tire sizes for your Volvo are specified to meet stringent stabilityand handling requirements. Unap-proved wheel/tire size combinationscan negatively affect your vehicle'sstability and handling.
• Any damage caused by installation ofunapproved wheel/tire size combina-tions will not be covered by your newvehicle warranty. Volvo assumes noresponsibility for death, injury, orexpenses that may result from suchinstallations.
Related information
•
Tire inflation – pressure table (p. 297)
• Tire specifications (p. 295)
• Tire specifications (p. 295)
• Changing a wheel – direction of rotation (p. 288)
• Tires – tread wear indicator (p. 287)
1
Option or accessory on some models
09 Wheels and tires
09
287
Tires – tread wear indicator
The tires have wear indicator strips running across or parallel to the tread.
G021829
The letters TWI are printed on the side of the
tire. When approximately 1/16" (1.6 mm) is left on the tread, these strips become visibleand indicate that the tire should be replaced.Tires with less than 1/16" (1.6 mm) tread offervery poor traction. When replacing worn tires, it is recommended that the tire be identical in type (radial) andsize as the one being replaced. Using a tire ofthe same make (manufacturer) will preventalteration of the driving characteristics of thevehicle.
Related information
• Tire inflation – pressure table (p. 297)
• Tire specifications (p. 295) •
Changing a wheel – direction of rotation (p. 288)
• Tires – storage and age (p. 286)
Tires – tire economy
A smooth driving style and correct inflation pressure can help prolong the tires' servicelife. • Maintain correct tire pressure. The tire inflation table, see Tire inflation – pressuretable (p. 297).
• Avoid fast starts, hard braking and tirescreeching.
• Tire wear increases with speed.
• Correct front wheel alignment is veryimportant.
• Unbalanced wheels impair tire economyand driving comfort.
• Tires must maintain the same direction ofrotation throughout their lifetime.
• When replacing tires, the tires with themost tread should be mounted on therear wheels to reduce the chance of over-steer during hard braking.
• Hitting curbs or potholes can damage thetires and/or wheels permanently.
||
09 Wheels and tires
09
296
1.215: the width of the tire (in millimeters)
from sidewall edge to sidewall edge. The larger the number, the wider the tire.
2. 65: The ratio of the tire's height to its
width in percent.
3. R: Radial tire (the designation RF and the
symbol indicate that the vehicle is
equipped with optional self-supporting run flat tires 4
.
4. 15: The diameter of the wheel rim (in
inches).
5. 95: The tire's load index. In this example,
a load index of 95 equals a maximum load of 1521 lbs (690 kg).
6. H: The tire's speed rating, or the maxi-
mum speed at which the tire is designedto be driven for extended periods of time,carrying a permissible load for the vehi-cle, and with correct inflation pressure.For example, H indicates a speed ratingof 130 mph (210 km/h).
NOTE
The tire's load index and speed rating may not appear on the sidewall because theyare not required by law.
7. M+S or M/S = Mud and Snow, AT = All
Terrain, AS = All Season
8. U.S. DOT Tire Identification Number (TIN)
: This begins with the letters "DOT"
and indicates that the tire meets all fed- eral standards. The next two numbers orletters are the plant code where it wasmanufactured, the next two are the tiresize code and the last four numbers rep-resent the week and year the tire wasbuilt. For example, 1510 means that thetire was manufactured during week 15 of2010. The numbers in between are mar-keting codes used at the manufacturer'sdiscretion. This information helps a tiremanufacturer identify a tire for safetyrecall purposes.
9. Tire Ply Composition and Material Used
: Indicates the number of plies indi-
cates or the number of layers of rubber- coated fabric in the tire tread and side-wall. Tire manufacturers also must indi-cate the ply materials in the tire and thesidewall, which include steel, nylon, poly-ester, and others.
10. Maximum Load : Indicates the maximum
load in pounds and kilograms that can becarried by the tire. Refer to the vehicle'stire information placard located on the B-Pillar for the correct tire pressure for yourvehicle. 11.
Treadwear, Traction, and Temperature grades
: see Tire specifications – Uniform
Tire Quality Grading (p. 300) for more information.
12. Maximum permissible inflation pressure:
the greatest amount of air
pressure that should ever be put in the tire. This limit is set by the tire manufac-turer.
4 Self-supporting run flat tires may not be available on all models
09 Wheels and tires
09
297
Tire inflation – pressure table
The following tire pressures are recom- mended by Volvo for your vehicle. Refer tothe tire inflation placard (see Tire inflation –general information (p. 293) for its location) for
information specific to the tires installed onyour vehicle at the factory. Some of the tire sizes listed here may not be available for all models in all markets.
Tire sizeCold tire pressure for up to five persons
Front psi (kPa)Rear psi (kPa)
235/45 R17 Extra load36 (250)36 (250)
215/50 R17 Extra load 235/40 R18 Extra load235/45 R18 Extra load235/40 R19 Extra load38 (260)38 (260)
Temporary spare tire
A
T125/80R1761 (420)61 (420)
A Available as an accessory
WARNING
19” wheels may never be used on vehicles
that are not equipped with the R-design or
the Sport chassis options. Using 19” wheels on vehicles equipped the standard chassis presents a safety
risk and the risk of damage to the vehicle,and impairs the vehicle’s driving characte-ristics.
NOTE
Please consult a Volvo retailer’s Parts department for the most up-to-date speci-fications.
09 Wheels and tires
09
}}
299
6. If your vehicle will be towing a trailer, load
from your trailer will be transferred to your vehicle.
WARNING
•Exceeding the permissible axle weight, gross vehicle weight, or any otherweight rating limits can cause tireoverheating resulting in permanentdeformation or catastrophic failure.
• Do not use replacement tires withlower load carrying capacities than thetires that were original equipment onthe vehicle because this will lower thevehicle's GVW rating. Use only tireswith the correct load carrying capacity.Consult your Volvo retailer for informa-tion.
Tire specifications – terminology
The following is a glossary of tire-related terms. The tire suppliers may have additional mark- ings, notes or warnings such as standardload, radial tubeless, etc.
• Tire information placard
: A placard
showing the OE (Original Equipment) tire sizes, recommended inflation pressure,and the maximum weight the vehicle cancarry.
• Tire Identification Number (TIN)
: A
number on the sidewall of each tire pro-viding information about the tire brandand manufacturing plant, tire size anddate of manufacturer.
• Inflation pressure
: A measure of the
amount of air in a tire.
• Standard load
: A class of P-metric or
Metric tires designed to carry a maximumload at 35 psi [37 psi (2.5 bar) for Metrictires]. Increasing the inflation pressurebeyond this pressure will not increase thetires load carrying capability.
• Extra load
: A class of P-metric or Metric
tires designed to carry a heavier maxi-mum load at 41 psi [43 psi (2.9 bar) forMetric tires]. Increasing the inflation pres-sure beyond this pressure will notincrease the tire's load carrying capabil-ity. •
kPa
: Kilopascal, a metric unit of air pres-
sure.
• PSI
: Pounds per square inch, a standard
unit of air pressure.
• B-pillar
: The structural member at the
side of the vehicle behind the front door.
• Bead area of the tire
: Area of the tire
next to the rim.
• Sidewall of the tire
: Area between the
bead area and the tread.
• Tread area of the tire
: Area of the perim-
eter of the tire that contacts the roadwhen mounted on the vehicle.
• Rim
: The metal support (wheel) for a tire
or a tire and tube assembly upon whichthe tire beads are seated.
• Maximum load rating
: a figure indicating
the maximum load in pounds and kilo-grams that can be carried by the tire. Thisrating is established by the tire manufac-turer.
• Maximum permissible inflation pressure
: the greatest amount of air
pressure that should ever be put in the tire. This limit is set by the tire manufac-turer.
• Recommended tire inflation pressure
:
inflation pressure, established by Volvo,which is based on the type of tires thatare mounted on a vehicle at the factory.This information can be found on the tireinflation placard(s) located on the driver's
09 Wheels and tires
09
301
WARNING
The temperature grade for this tire is established for a tire that is properly infla-ted and not overloaded. Excessive speed,under-inflation, or excessive loading, eitherseparately or in combination, can causeheat buildup and tire failure.
Snow chains
Snow chains can be used on your Volvo with the following restrictions:
• Snow chains should be installed on front wheels only. Use only Volvo approvedsnow chains.
• If accessory, aftermarket or "custom"tires and wheels are installed and are of asize different than the original tires andwheels, chains in some cases CANNOTbe used. Sufficient clearances betweenchains and brakes, suspension and bodycomponents must be maintained.
• Some strap-on type chains will interferewith brake components and thereforeCANNOT be used.
• All Wheel Drive models
: Snow chains
should only be installed on the frontwheels.
• Certain size tires may not allow theassembly of snow chains/traction devi-ces.
Consult your Volvo retailer for additional snow chain information.CAUTION
• Check local regulations regarding the use of snow chains before installing.
• Use single-sided snow chains only.
• Always follow the chain manufactur-er's installation instructions carefully.Install chains as tightly as possible andretighten periodically.
• Never exceed the chain manufactur-er's specified maximum speed limit.(Under no circumstances should youexceed 31 mph (50 km/h).
• Avoid bumps, holes or sharp turnswhen driving with snow chains.
• The handling of the vehicle can beadversely affected when driving withchains. Avoid fast or sharp turns aswell as locked wheel braking.